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CAP at a glance
CAP
Digital photography fragmented into many manufacturer-specific raw formats because camera makers optimized for their own sensors, metadata, and software ecosystems rather than for one shared public raw standard.
EXR at a glance
EXR
OpenEXR came from film-production needs at ILM and then evolved into an open industry format that spread across rendering, compositing, and broader high-end image pipelines.
Format comparison
| Feature | CAP | EXR |
|---|---|---|
| File type | Image | Image |
| Extensions |
|
|
| MIME type |
|
|
| Created year | 2005 | 2003 |
| Inventor | Phase One | Industrial Light & Magic |
| Status | proprietary | active |
| Transparency | Not supported | Not supported |
| Animation | Not supported | Not supported |
| Primary use cases |
|
|
| Layer support | Not supported | Not supported |
| Vector scaling | Not supported | Not supported |
| Camera raw data | Supported | Not supported |
| HDR support | Not supported | Supported |
| Streaming ready | Not supported | Not supported |
When to use each format
When to use CAP
- Your source file is already in CAP.
- Preserve source expectations before exporting to EXR.
- CAP is commonly used in image workflows.
When to use EXR
- Your target workflow expects EXR.
- Improve delivery compatibility with EXR.
- EXR is commonly used in image workflows.
FAQs
Why convert CAP to EXR?
Convert to EXR when the image needs high dynamic range, floating-point precision, render passes, or linear-light compositing.
It is ideal for CGI, VFX, and advanced HDR production pipelines.
What changes when converting CAP to EXR?
This conversion changes how the format behaves in downstream tools and delivery environments.
Moving to EXR removes camera raw data. Moving to EXR adds HDR content.
What should I review after converting CAP to EXR?
Validate output quality on representative files and confirm the target format behaves correctly in the destination workflow.